Foldable cover for dictating-machines and the like.



. M. KELLOGG. FOLDABLE COVER FOR DICTATING MACHINES AND THE LIKE.

APPLICATION FILED JUNE II. 1913.

1,144,417, Patented June 29, 1915.

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FOLDABLE oovnn non nIora'rmG-rancnmns AND THE LIKE.

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Specification of Letters ratent.

Patented June 29, 1915.

Application filed June 11, 1913. Serial No. 773,036. I

T 0 all whom it may concern:

Be it known that I, MILTON KELLO GG, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of'New York, have invented certain new and useful Improvements in Foldable Covers for DictatingMachines and the like,

of which the following is a specificationfi This invention relates to foldable covers for dictating machines, phonographs, stock tickers, typewriters and the like, and aims to provide improvements therein.

Covers of the kind at present in use cannot be folded sufficiently flat, and with sufficient ease, to enable them to be conveniently folded and stowed away, when removed from the apparatus over which they are placed. 1 p

The present invention overcomes the foregoing objections and provides a cover which can be folded so as to lie perfectly flat, without wrinkling, and which when removed from the apparatus over which it is placed will easily and inherently tend to fall into its flat folded position. I When folded the cover lies perfectly flat and smooth and can be laid fiat upon a table or in a drawer without occasioning any incon venient obstruction.

The invention will be described more fully in connection with the accompanying drawings, wherein- Figure 1 illustrates a develo ment of the body and end pieces constituting the cover; Fig. 2 is a front elevation of the cover, extended and as it appears when in place over a piece of mechanism; Fig. 3 is an end elevation of the cover in extended or open position; and Fig. A is a View of the cover in folded position, parts being broken away to show more clearly the underlying parts.

In said drawings. A A indicate the end pieces and B thebody piece, which parts are most usually and preferably made of fabric having a rubber, or rubber-like, coating. The end pieces A may have practically any desired outline. As shown the end pieces A have somewhat the shape of a semiellipse on its minor axis. These end pieces may, however, have a variety of outlines, and may include a variety of curves, as well as straight lines. i

In laying out the end pieces A, a triangle is constructed within the same, having its apex at the center line of fold b of the cover. As ordinarily constructed, covers of the kind referred to have their body portions constructed as a simple rectangular figure, in length corresponding to theperimeter of the sides of the end pieces. When such a body piece is united to an end piece having any other outline than that of a triangle, the covers will not fold without wrinkling nor lie flatly, as can be readily verified by constructing a cover, or by folding one of the ordinary covers upon the market.

In constructing the body piece B of applicants invention straight lines Z9 Z2 are drawn at the sides. corresponding in length to the sides a a of the triangle constructed within the end piece 13. On the outside of these lines 5 2 are laid out geometrical figures b b 5 corresponding in shape to the figures a a of the end pieces A, on the outsides of the sides a a of the triangles within the end pieces.

The body piece B and the end piece A are united along the perimeters of the figures a and b Covers constructed of a body piece and an end piece or pieces thus shaped and united will fold perfectly withoutof the parts A and B of the cover, but are preferably formed at bends in the part A of the cover. By this construction the tendency. of the cover, when extended, is to collapse inwardly, thus providing an inherent folding or tendency to fold, when the cover is removed from the part over which it is placed. Furthermore, by such construction the bottom edges of the cover close or tend to close, inwardly around the object over which the cover is placed, the cover thus fitting snugly at its bottom edges around the ob ject over which it is placed.

In symmetrical covers, such as illustrated in the drawings, the end pieces A fold in their middle, along the line a bisecting the apex of the triangle constructed within theend piece A. In most cases the line of fold in the'end piece will bisect the apex of the triangle constructed therein. In some irregular shapes of covers the line of fold in the end piece may be best determined by experiment. The folding of the cover ma be facilitated by creasing the end piece a ong piece and an end-piece, said end-piece having edge portions on the outside of the largest triangle which may be inscribed within said end-piece, said body-piece having edge portions contiguous to said edge portions of said end-piece, of a corresponding outline and said body-piece and end-piece being con nected at said edge portions, said body-piece and said end-piece each being adapted when so connected to be folded into two parts, and when so folded, to lie flat.

2. A foldable cover comprising a bod piece and two end-pieces, said two end-pieces being located at opposite sides of said bodypiece, said end-pieces having edge portions on the outside of the largest triangle which may be inscribed within said end-pieces, said body-piece having edge portions contiguous to said edge portions of said end-pieces, and of a corresponding outline and said endpieces being connected to said body-piece at said edge portions, said body-piece and said end-pieces each being adapted to be folded when so connected into two parts, and when so folded, to lie flat.

3. In a foldable cover, the combination of a body-piece and an end-piece,said endpiece being of substantially three-sided confi uration and havln ed e ortions outside of two sides of a triangle which may be in scribed within said end-piece, each side of said body-piece being of four-sided config- -uration and having at the side adjacent said end-piece a poition outside of a line connecting its upper and lower corners corresponding to the adjacent outside'portion of said end-piece, and secured thereto at its edge.

4C. In a foldable cover, the combinationof a body-piece and two end-pieces, each of said end-pieces being of substantially three sided configurationand having edgeportions outside-0f two sides of a triangle which may be inscribed within said end-piece, saidboc y piece being folded on a line substantially intersecting the peaks of the end-pieces and MILTON KELLOGG.

, Witnesses:

GUsTAvn R. THoMrsoN, FRED YVHITE.

Copies of this patent may he obtained for five cents each, by addressinglthe Commissioner of Patents,

Washington, D, G." 

